How to get UIAccessibilityNotifications in iPhone app

Question

I am interested in making changes to the user interface in my application programmatically and thought the protocol UIAccessibilitymight help. I found how to send messages UIAccessibilityLayoutChangedNotificationand UIAccessibilityScreenChangedNotification, but I'm not sure how to register to receive these notifications.

I tried to use NSNotificationCenter, but the parameter is nameexpecting string, while the two above notifications have a type UIAccesibilityNotificationsthat is int.

Any idea how to register for these notifications?

Thanks!

Answer 1

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UIKit, , UIAccessibilityPostNotification :

static void (*__UIAccessibilityBroadcastCallback)(UIAccessibilityNotifications notification, id argument);
void UIAccessibilityPostNotification(UIAccessibilityNotifications notification, id argument) {
    __UIAccessibilityBroadcastCallback (notification, argument);
}

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, API _UIAccessibilitySetBroadcastCallback:

void _UIAccessibilitySetBroadcastCallback(void (*replacement)(UIAccessibilityNotifications notification, id argument)) {
   __UIAccessibilityBroadcastCallback = replacement;
}

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